{"id":"CVE-2026-20627","title":"An issue existed in the handling of environment variables","summary":"An issue existed in the handling of environment variables. This issue was addressed with improved validation. This issue is fixed in iOS 26.3 and iPadOS 26.3, macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.3, visionOS 26.3, wa…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","cwe":["CWE-20"],"vendor":"apple","product":"ipados","affected":["ipados < 26.3","iphone_os < 26.3","macos >= 14.0, < 14.8.4","macos >= 26.0, < 26.3","visionos < 26.3","watchos < 26.3"],"patched":["ipados 26.3","iphone_os 26.3","macos 26.3","visionos 26.3","watchos 26.3"],"published":"2026-02-11","updated":"2026-08-21","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-20627","references":[{"url":"https://support.apple.com/en-us/126346","label":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/126348","label":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/126349","label":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/126350","label":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/126352","label":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/126353","label":"product-security@apple.com"}],"tags":["nvd"],"epss":0.00147,"epssPercentile":0.04338,"ingestedAt":"2026-08-21T03:06:25.397Z","slug":"CVE-2026-20627","body":"## Overview\n\nAn issue existed in the handling of environment variables. This issue was addressed with improved validation. This issue is fixed in iOS 26.3 and iPadOS 26.3, macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.3, visionOS 26.3, watchOS 26.3. An app may be able to access sensitive user data.\n\n## Affected\n\n- `ipados < 26.3`\n- `iphone_os < 26.3`\n- `macos >= 14.0, < 14.8.4`\n- `macos >= 26.0, < 26.3`\n- `visionos < 26.3`\n- `watchos < 26.3`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `ipados 26.3`\n- `iphone_os 26.3`\n- `macos 26.3`\n- `visionos 26.3`\n- `watchos 26.3`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}